Improvement in evaporators



' J. M. RANDOLPH. Evaporator. No. 196,595 Patented Oct. 30, I877.

WITNESSES J N;PETER$, PHDTO-LITHDGRAPHER, WASNINGTON, D C) PATENTOFFICE.

JOHN M.- RANDOLPH, OF SOMERSET, OHIO.

IMPROVEMENT IN EVAPORATO RS.

Specification forming part of Letters Patent No. 196,595, dated October30, 1877 application filed June 11, 1877.

To all whom it may concern:

Be it known that L'JOHN M. RANDOLPH, of Somerset, in the county of Perryand State of Ohio, have invented a new and Improved Evaporator andFeed-Boiler, of which the following is a specification:

In the accompanying drawing, Figure 1 represents a vertical longitudinalsection of my improved evaporator and feed-boiler and Fig. 2 a verticaltransverse section of the same on line as m, Fig. 1.

Similar letters of reference indicate corresponding parts.

The invention relates to an improved evaporator for molasses, maplesirup, and other purposes, which may also be used conveniently as afeed-boiler, it being simple in construction and economical in theconsumption of fuel; and it consists of an evaporating-pane, extendingaround the top, sides, and bottom of a sliding fire-box in which thefire is regulated by a supplementary smoke-pipe in front of the mainsmoke-pipe, which passes through a cleansing tub or receptacle, to heatup the liquid therein, preparatory to its being let into the pan.

In the drawing, A represents an evaporating-pan, and B the fire-box,which slides into the lower section of the pan, being surrounded at thetop, rear, sides, and bottom by the pan.

The cleansing tub or receptacle O is arranged at the rear end of the panA, on the top of the same, and the canejuice or other liquid thereincleansed and purified before being let into the pan by the heat of themain smoke-pipe D, that passes up through the pan A and tub O.

The fire-box is provided with two smokepipes, D E, the former placedbeyond the open end of the sliding fire-box, while the latter piperegisters with fire-box by means of the aperture b. The pipes areprovided with dampers, as shown in Fig. 1 of the drawing, spf that thedraft through either may be shut o The cleansing-tub and evaporating-panare provided with stop-cocks a, for drawing off the contents.

The evaporation of the liquid is effected rapidly and economically bythe arrangement of the fire-box in the evaporating-pan so as to besurrounded by the liquid, while by the cleansing-tub the preparatoryheating and skimming of the liquid is accomplished.

The apparatus may be used as a common feed-boiler, by taking off thecleansing-tub and using the pan in the customary manner. The boiler maybe made of any suitable material, preferably of galvanized sheet-iron,forming an efi'ective and economical boiler for agricultural purposes.

Having thus described my invention, I claim as new and desire to secureby Letters Patcut- In an evaporator, the sliding firebox B, open at thefront, and having aperture 12, in combination with the pan A, having alower section surrounding said fire-box, and the dampered smoke-pipes DE, as shown and described.

JOHN MILTON RANDOLPH.

Witnesses:

P. H. BINOKLEY, J 0s. A. FLAUT'I.

